It is used by all professional weather services in manned stations and is the most accurate way of directly measuring rainfall. Graduated Cylinder Rain GaugeĪlso known as the standard rain gauge, the graduated cylinder rain gauge is a simple, measured glass cylinder. Graduated Cylinder Rain Gauge (Standard Rain Gauge)Įach rain gauge serves a different purpose, depending on the needs of the meteorologist, hydrologist, or home weather enthusiast.These different mechanisms and methods of collecting and measuring the rainfall make each rain gauge different. The rain falls into a cylindrical funnel that collects the water, which runs down into different measuring mechanisms. If you look at different rain gauges closely, you will notice that the majority of them work on the same basic principle. To understand how a rain gauge works, one needs to look at the different types of devices for measuring rainfall and examine the unique way in which each one works. Also known as udometers and pluviometers, rain gauges are considered to be one of the oldest meteorological instruments ever invented and widely used.
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